How to ping in JavaScript or jQuery?

Question

I want to create a game-like ping in Javascript, just like the game Counter Strike for example. I\'m doing an AJAX call to the server (MySQL) and want to calculate the time that

Answer 1

the lower response time is because by default the cache property is set to true, set it to false so that every time it goes to the server not the cache

var ping = new Date;

$.ajax({ type: "POST",
    url: "server.php",
    data: {....},
    cache:false,
    success: function(output){ 

        ping = new Date - ping;

    }
});